/
memfs_test.go
158 lines (137 loc) · 3.05 KB
/
memfs_test.go
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// Copyright (c) 2013 The Go Authors. All rights reserved.
// Copyright (c) 2013 memfs Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package memfs_test
import (
"testing"
"fmt"
"io/ioutil"
"log"
"net"
"net/http"
"os/exec"
"time"
"github.com/ranveerkunal/memfs"
)
func setUp() string {
name, err := ioutil.TempDir("/tmp", "memfs")
if err != nil {
log.Fatal(err)
}
fmt.Printf("temp dir: %s\n", name)
return name
}
func createBigFile(name string) string {
bigFile := name + "/big.txt"
fmt.Printf("writing big file\n")
cmd := exec.Command("dd", "if=/dev/urandom", "of=" + bigFile, "bs=1048576", "count=100")
err := cmd.Run()
if err != nil {
log.Fatal(err)
}
return bigFile
}
func createSmallFile(name string) string {
smallFile := name + "/small.txt"
fmt.Printf("writing small file\n")
cmd := exec.Command("dd", "if=/dev/urandom", "of=" + smallFile, "bs=64", "count=10")
err := cmd.Run()
if err != nil {
log.Fatal(err)
}
return smallFile
}
func startServer(fs http.FileSystem, prefix, addr string) {
ln, err := net.Listen("tcp", addr)
if err != nil {
log.Fatal(err)
}
handler := http.NewServeMux()
handler.Handle(prefix, http.StripPrefix(prefix, http.FileServer(fs)))
err = http.Serve(ln, handler)
if err != nil {
log.Fatal(err)
}
}
var (
memFS http.FileSystem
diskFS http.FileSystem
err error
)
func init() {
name := setUp()
createSmallFile(name)
createBigFile(name)
memFS, err = memfs.New(name)
if err != nil {
log.Fatal(err)
}
go startServer(memFS, "/memfs/", ":6666")
diskFS = http.Dir(name)
go startServer(diskFS, "/diskfs/", ":7777")
time.Sleep(5 * time.Second)
fmt.Printf("ready to benchmark ...\n")
}
func BenchmarkNonExistentMemFS(b *testing.B) {
for i := 0; i < b.N; i++ {
memFS.Open("./non_existent.%d")
}
}
func BenchmarkNonExistentDiskFS(b *testing.B) {
for i := 0; i < b.N; i++ {
diskFS.Open("./non_existent.%d")
}
}
func BenchmarkSmallFileMemFS(b *testing.B) {
for i := 0; i < b.N; i++ {
res, err := http.Get("http://localhost:6666/memfs/small.txt")
if err != nil {
b.Fatal(err)
}
defer res.Body.Close()
_, err = ioutil.ReadAll(res.Body)
if err != nil {
b.Fatal(err)
}
}
}
func BenchmarkSmallFileDiskFS(b *testing.B) {
for i := 0; i < b.N; i++ {
res, err := http.Get("http://localhost:7777/diskfs/small.txt")
if err != nil {
b.Fatal(err)
}
defer res.Body.Close()
_, err = ioutil.ReadAll(res.Body)
if err != nil {
b.Fatal(err)
}
}
}
func BenchmarkBigFileMemFS(b *testing.B) {
for i := 0; i < b.N; i++ {
res, err := http.Get("http://localhost:6666/memfs/big.txt")
if err != nil {
b.Fatal(err)
}
defer res.Body.Close()
_, err = ioutil.ReadAll(res.Body)
if err != nil {
b.Fatal(err)
}
}
}
func BenchmarkBigFileDiskFS(b *testing.B) {
for i := 0; i < b.N; i++ {
res, err := http.Get("http://localhost:7777/diskfs/big.txt")
if err != nil {
b.Fatal(err)
}
defer res.Body.Close()
_, err = ioutil.ReadAll(res.Body)
if err != nil {
b.Fatal(err)
}
}
}